baber/WOPTO huggingface dataset:
Patent KR-20000018169-A (KR)
Inventor: PARK KANG DURK
IPC: B60K26/00
Filed: 2000-01-12
Abstract: PURPOSE: A device of clutch pedal including function of mechanical engineering for a driver is provided to reduce the power given to a clutch pedal by using additional power by a fundamental of a lever when a upper sliding plate is slided. CONSTITUTION: A device of clutch pedal including function of mechanical engineering for a driver comprises: an embossing rubber plate(101) to step on when to use a clutch pedal; a upper sliding plate(102) to lengthen by sliding for using a fundamental of a lever and to be designed in a curved surface; a flat board gear of a curved surface type(601) to be formed on the base plane of a upper sliding plate(120) and to rotate a rotary gear of circular type(202); a drum of a cam shaft(203) to be equipped on the right and the left of a rotary gear of circular type(202) and to lengthen the length pushing the whole shaft plate(401) connected with a clutch pedal plate.
Patent KR-20010073949-A (KR)
Title: Eyesight protection apparatus
Inventor: CHO HYUN WOO
IPC: H04N5/64
Filed: 2000-01-24
Abstract: PURPOSE: An eyesight protecting apparatus is provided to protect an eyesight of a viewer by maintaining an adequate distance from a monitor connected with a television or computer. CONSTITUTION: A power(10) converts AC voltage to DC voltage and supplies the converted DC voltage. A sensor(20) is operated by the DC voltage and is set at a fixed distance. The sensor(20) senses whether there is an approach within a fixed distance and generates sensing signal. A controller(30) is provided with the sensing signal from the sensor(20) and generates a control signal. A switch(40) is provided with the control signal from the controller(30), and selectively switches in order to decide a direction of the provided control signal. A buzzer(50) is operated according to the switching control of the switch(40), and generates an alarm. A light emitting diode generates a light according to the above switching control.
Patent KR-20000018265-A (KR)
Inventor: YANG GIL SUB
IPC: H04L29/02
Filed: 2000-01-28
Abstract: PURPOSE: A system connects a destination to connect through a network only with a name and a medium kind formed of a native language most intimate to a man to improve the prior name service. CONSTITUTION: The present invention is a native name service system(NNSS) enabling to find an address or an access port formed of digits and codes through native name in various communication networks. The system converts the address or the access port formed of digits and codes for a machine into a native name for a man to memorize and to find easily. If a user inputs a communication destination by a native name, not digits or codes, into all sorts of single or compound native name service clients(NNS clients) connected to a communication network, a native name service server(NNS server) on the communication network converts into digits or codes corresponding to the native name and displays on a terminal and enables the access.
Patent KR-20010078598-A (KR)
Inventor: CHO HAE UN
IPC: H01J11/44
Filed: 2000-02-09
Abstract: PURPOSE: A plasma display panel is provided to reduce the output amount of electromagnetic interference waves because current directions flowing in X-Y electrode lines and black lines are opposite to each other. CONSTITUTION: Conductive first and second black lines for enhancing contrast are formed to be parallel to electrode lines and are positioned between respective X and Y electrode line pairs(X1,...,Xn;Y1,...,Yn). The first black lines(...,Bxn-1,BXn) are positioned beside the X electrode lines and the second black lines(By1,...Byn) are positioned beside the Y electrode lines. Further, the X electrode lines and the first black lines are connected to each other on the opposite side to the drive signal input positions of the X electrode lines, and Y electrode lines and the second black lines are connected to each other on the opposite side to the drive signal input positions of the Y electrode lines.
Patent KR-20010014478-A (KR)
Inventor: OTAKE MOTOYUKI
IPC: G02B15/20
Filed: 2000-02-09
Abstract: PURPOSE: Disclosed is a variable focusing lens system which is small in size and suitably made large in variable power. CONSTITUTION: This lens system has a 1st positive lens group(G1), a 2nd positive lens group(G2), and a 3rd negative lens group(G3) in the order from the object side and the lens position state is changed from the wide-angle end state to the telephoto end state, by moving the respective lens groups toward the object side, so that the interval between the 1st lens group(G1) and 2nd lens group(G2) increases and the interval between the 2nd lens group(G2) and 3rd lens group(G3) decreases. Then an aperture stop is arranged between the 1st lens group(G1) and 3rd lens group(G3), and 2nd lens group(G2) has a positive lens which is arranged adjacent to the aperture stop(S) and has aspheric lens surfaces as both its lens surfaces and meets prescribed conditions.
Patent KR-20010083388-A (KR)
Title: Solder grip
Inventor: WOO JAE SEON
IPC: B23K3/00
Filed: 2000-02-12
Abstract: PURPOSE: A solder grip is provided which is equipped with a separation preventing means at the guide part and a plurality of plane supporting parts contacted the lower part of the body with being parallel to PCB. CONSTITUTION: In a solder grip connecting a heat sink (60) of a monitor to a PCB (40), the solder grip comprises a body (51) at the lower part of which a plurality of plane supporting parts (51a) contacted with the PCB (40) with being parallel to PCB (40) is installed; a guide part (52) which is extended from the upper part of the body (51), inserted into guide grooves (61) formed on both left and right side surfaces of the heat sink (60), and equipped with separation preventing guide plates (52a) at the end parts of both sides which are inserted into the guide grooves (61); and fixing pins (53) which are projected from the end parts of both sides of the body (51) so that they are positioned between the plane supporting parts (51a) of the body (51), and soldered by being inserted into the eyelets (41) of the PCB (40).
Patent KR-20010083742-A (KR)
Title: Making method of artifical nail
Inventor: LEE MI SUK
IPC: A45D31/00
Filed: 2000-02-21
Abstract: PURPOSE: A method for forming an artificial nail is provided to endow a great variety of patterns to the nail, to strongly express the beauty of the nail, and to improve the activity of the nail. CONSTITUTION: An adhesive solution is applied to a nail, and a base sheet(3) printed with lines on the rear surface is covered on the nail. A bit of color powder is painted on the nail, and then a film(4) is attached on the nail. A transparent powder is painted on a cavity provided on the tip end of the film. After the base sheet is separated from the nail, the nail is grinded to even the thickness of the nail to form an artificial nail(6). A decoration such as a diamond is disposed in the cavity, and a capsule is formed by covering the cavity with a transparent chip. The whole surface of the nail and the artificial nail are uniformly grinded, and then a transparent powder is coated on the whole surface thereof. Additionally, for improving the transparency of the nail and the artificial nail, a top coating layer is formed on the nail and the artificial nail. Finally, a masking seal having a size same with the size of the rounded capsule on the tip end of the nail is adhered on the tip end, and a manicure is painted over the masking seal, thereby the artificial nail is completed.
Patent KR-20010084356-A (KR)
Inventor: LIM CHUN GEUN
IPC: F02D35/00
Filed: 2000-02-25
Abstract: PURPOSE: A throttle position sensor is provided to simplify the assembling process by improving the structure of components and to improve the reliability of a product. CONSTITUTION: A throttle position sensor has a housing(100) having an opening, a rotor(200) rotatably received in the housing while a brush(210) is installed in the upper portion, a cover(300) combined to the opening of the housing by molding while including a resistor contacting to the brush of the rotor and an electrode terminal(310), and a return spring(400) received in the housing to apply axial or rotary elastic bias force to the rotor. Additionally, a housing terminal(110) of the housing is combined to surround the electrode terminal by caulking. Also, the housing terminal is combined with the electrode terminal by epoxy molding. Therefore, airtightness and strength are improved. Moreover, assembling becomes easy by removing such components as an electrode assembly, a wave washer and an O-ring.
Patent KR-20000071426-A (KR)
Title: 탄성 표면파 필터 및 이를 사용하는 통신장치
IPC: H04B1/26
Filed: 2000-03-09
Abstract: 본 발명의 탄성 표면파 필터는 IDT(interdigital transducer)를 구비하고 있는 압전기판, 상기 압전기판 상에 형성되는 입출력 단자 및 기준전위 단자를 가지고 있는 탄성 표면파 소자; 및 상기 탄성 표면파 소자를 둘러싸고 있으며, 전극랜드(electrode land) 및 외부단자를 가지고 있는 패키지(package)를 포함하고 있다. 본 발명에 있어서, 패키지의 외부단자의 기준전위 단자에 의해 발생되는 인덕턴스에 의해 구성되는 공진기의 공진 주파수는 슈퍼헤테로다인 방식(superheterodyne system)에서 주파수 변환의 수행과 동시에 발생하는 영상 주파수의 근방에 위치된다.
Patent KR-20010088137-A (KR)
Title: Reservation system for web-based medical examination
Inventor: LEE HYEOK GI
Filed: 2000-03-10
Abstract: PURPOSE: A system for reserving a medical examination based on the web is provided to enable a computer user to easily search the medical institution in local area through the web and reserve the medical examination on the desired date and time. CONSTITUTION: The web(10) takes charge of the data communication related to the medical examination between many client PC(20) and a main server(30). The client PC connects to the medical institution site(40), which the user selects, and sends the booking data of the user to the medical institution site via the main server. The main server, which built DB for the medical institution data and for the member data, fetches the medical institution data of every area or every treatment on demand of the user, and sends the data to the client PC. The main server sends the booking data of the user to the medical institution site, while sending the current booking state to the client PC.
Patent KR-20010094561-A (KR)
Title: bay system for device
Inventor: LEE CHEON SEOK
IPC: G06F1/16
Filed: 2000-03-31
Abstract: PURPOSE: A device bay system is provided to increase convenience of a user by easily mounting and exchanging a device by a choosing of the user. CONSTITUTION: An opening part(131) is formed at a front surface of a case(100). A device(1) is inserted into the opening part(131). A tray(200) is movably mounted on the case(100). The device(1) is mounted on the tray(200). The controller locks the tray(200) by operating the main button(320) by inserting he device(1), While the controller unlocks the tray(200) by discharging the device(1). A conveying assembly(400) transfers force to the tray(200), and the force performs transfer toward the opening part(131). A guiding unit changes the force into a straight force so that the tray(200) performs to be rectilinear motion. The guiding unit guides a moving of the tray(200). When the device(1) inserts into the opening part(131) of the case(100), the device(1) is mounted on the tray(200) which is positioned in the case(100).
Patent KR-20010094005-A (KR)
Inventor: AHN JAE YONG
IPC: H01L21/027
Filed: 2000-04-03
Abstract: PURPOSE: A CPM(cell projection mask) is provided to easily achieve a bar-type isolation pattern without reducing productivity by using a dummy pattern having a serif function. CONSTITUTION: The CPM(40) in non-optical photolithography has a plurality of bar-type mask patterns(32) arranged in Zig-Zag structure. The mask patterns(32) further comprises a dummy pattern(32b) formed at both sides of the center portion of bar-type patterns(32a). The dummy patterns(32b) are used as a serif function of the conventional VSB(variable shaped beam) exposure method. The bar-type mask patterns(32) have more narrow width than a width of a desired pattern with regard to a mask bias.
Patent KR-20010095623-A (KR)
Title: Separator for lithium secondary battery and the method thereof
Inventor: KIM SEONG HUN
IPC: H01M2/14
Filed: 2000-04-11
Abstract: PURPOSE: A separator for a lithium secondary battery and its preparation method are provided, to improve the ion conductivity and the mechanical properties of a separator for allowing it to be applied to the continuous lamination process and to simplify the process by omitting the injection of a plasticizer. CONSTITUTION: The separator comprises a porous polyolefin film; and a porous adhesive polymer film which is formed on both sides of the porous polyolefin film and is made of an adhesive polymer resin and an inorganic filler. The method comprises the steps of spraying a composition comprising an adhesive polymer resin, an inorganic filler and a solvent onto both surfaces of a porous polyolefin film to coat it; and drying it. Preferably the adhesive polymer resin is selected from the group consisting of poly(vinylidene fluoride), vinylidene fluoride-hexapropylene fluoride copolymer, poly(ethylene acrylic acid) and styrene-butadiene resin; the polyolefin film is polyethylene or polypropylene; the inorganic filler is selected from the group consisting of SiO2, Al2O3, B2O3, Ga2O3, TiO2, SnO2 and mixtures thereof; and the solvent is acetone or alcohols.
Patent KR-20010096370-A (KR)
Title: Joining method for tungsten carbide to high speed steel dissimilar joint
Inventor: JEONG HO SHIN
IPC: B22F7/06
Filed: 2000-04-18
Abstract: PURPOSE: A method for bonding a cemented carbide material with high speed steel is provided to increase strength and durability of a bonding part by using nickel based foil or powder, or varieties of nickel based molten metals as an inserting material, constructing the bonding part in an irregular shape, and brazing or diffusion bonding the bonding part. CONSTITUTION: In bonding a cemented carbide material with high speed steel, the method for bonding a cemented carbide material with high speed steel comprises the steps of forming irregular surfaces on a bonding surface of both materials(10,20), wherein each of the irregular surfaces are corresponding to each other; inserting the inserting material into the bonding surface of both materials using nickel based foil or powder, varieties of nickel based molten metals or a material containing a high content of nickel as an inserting material of the bonding surface; and bonding both materials passing through the above steps, wherein the bonding surface is constructed in a one stage concave and convex parts(30,40) or two or more stage concave and convex parts(50,60), a thickness of the inserting material used on the bonding surface of both materials(10,20) as a bonding medium is 500 microns or less, and a content of nickel is 36 wt.% or more, and wherein both materials are bonded by diffusion welding process using diffusion phenomena under the vacuum environment, or brazing process.
Patent KR-20000071745-A (KR)
Title: 온도 레벨 감지 회로
IPC: G01K7/01
Filed: 2000-04-20
Abstract: 본 발명은 온도 레벨 감지 회로에 관한 것이다. 상기 온도 레벨 감지 회로는 다이오드 전압(V BE1 ~V BE5 ) 생성 수단(B1, B2, B3, 11, 12, 21, 31, 32)과 연산 수단을 포함하고, 상기 연산 수단은 축전 요소(51, 52, 53)와 스위칭 수단(SW1~SW4)을 포함한다. 상기 스위칭 수단(SW1~SW4)은 상기 다이오드 전압(V BE1 ~V BE5 ) 생성 수단에 축전 요소(51, 52, 53)를 제 1, 2 단계에서 선택적이면서도 순차적으로 연결하도록 배열된다. 제 2 단계에서, 방정식 α 1 (V BE2 - V BE1 ) + α 2 (V BE3 + α 3 (V BE5 - V BE4 ))가 0이 될 때의 온도값으로 정의되는 정해진 한계 온도(T LIMIT )보다 크거나 작은 온도 레벨을 나타내는 온도 신호를 상기 연산 수단이 생성하고, 여기서 α 1 , α 2 , α 3 는 축전 요소 값에 의해 결정되는 제 1, 2, 3 비례 상수이다.
Patent KR-20010097295-A (KR)
Inventor: LEE YUN GWAN
IPC: H01J9/24
Filed: 2000-04-21
Abstract: 본 발명은 표시소자 제조방법에 관한 것으로, 종래 표시소자 제조방법은 플라즈마 디스플레이 패널에 있어서는 상판유전체를 유기 바인더와 Pb를 40%이상 함유하고 있는 붕규산유리 분말 혼합 페이스트를 600℃ 이하의 온도에서 소성하여 완전소성체를 형성할 수 없어 유기물의 잔존 등에 의한 유전체 내부에 기포가 존재하여 절연파괴 및 투과율이 저하되는 문제점이 있었고, SSD의 경우 유전체와 발광체의 사이에 그 유전체와 발광층의 밀착성을 향상시키기 위해, SOL-GEL법 또는 MOD법으로 평탄층을 형성하여, 공정이 복잡하고, 수율이 저하되는 문제점이 있었다. 이와 같은 문제점을 감안한 본 발명은 플라즈마 디스플레이 패널 또는 솔리드 스테이트 디스플레이를 제조하는 표시소자 제조방법에 있어서, 상기 플라즈마 디스플레이 패널의 상판 유전층의 상층과 솔리드 스테이트 디스플레이의 평탄화층을 진공증착법에 의해 증착되는 PVDF(PolyVinylDene Fluoride)로 대체하여 기공 감소 및 치밀도를 향상시켜, 광투과율을 향상시킴과 아울러 절연파괴 특성을 향상시키는 효과가 있고, 분말의 제작, 용매와의 혼합에 의한 페이스트 제작, 및 페이스트의 도포 및 소성공정의 진행으로 공정이 복잡한 스크린 프린트법을 사용하지 않고, 공정이 단순한 진공증착법을 사용하여 원가절감 및 생산성을 향상시키는 효과가 있다.
Patent KR-20000049833-A (KR)
Inventor: PARK JUNG IL
IPC: H04L12/00
Filed: 2000-05-02
Abstract: PURPOSE: A method for producing a digital moving picture album via an Internet is provided permanently to store the album, and to transmit moving pictures to other person, by producing one more moving pictures composed files, as one piece of album, in parallel with a text. The method is provided freely to transmit moving picture album supplying a caption for a business ad or caption for an audile disables, in parallel with the moving pictures. CONSTITUTION: A method for producing a digital moving picture album via an Internet comprises the steps of: logging in a server for supplying a moving picture album; selecting one of various frame displayed moving pictures; inputting a proper title on the album; writing explanations on references and stories referred to the pictures and the album, in a text type; inputting position information on moving picture files stored in the server, or a my-computer accessed to the server; and editing for completing the album.
Patent KR-20010066788-A (KR)
Inventor: IZUMI SHUNJI
IPC: B30B9/14
Filed: 2000-05-10
Abstract: PURPOSE: To provide a solid-liquid separator capable of efficiently separating the solid from the liquid while preventing a strainer from being clogged. CONSTITUTION: The solid-liquid separator comprises a strainer 12 formed cylindrical by laminating a plurality of flat plate-like circular ring bodies 14 with a specified clearance therebetween, a case 24 which has a storage part 26 to store the strainer 12, and in which the storage part 26 is separated into an internal area B and an external area C of the strainer 12 by the strainer 12, an inlet 28 to introduce the mixture of the solid 16 and the liquid 18 is formed in the external area C, and an outlet 30 to discharge the liquid 18 entering the internal area B outside through the spaces between the circular ring bodies 14 is formed in the internal area B, and a scraper 20 having a flat-plate like projecting piece 22 whose tip enters in each clearance between the circular ring bodies 14 which is relatively moved along the outer circumferential surface of the circular ring bodies 14 to scrape the solid 16 adhered to an end face of the circular ring bodies 14.
Patent KR-20000077228-A (KR)
Title: 일회용의 체액 처리 물품
IPC: A61F13/472
Filed: 2000-05-12
Abstract: 본 발명은 플랩의 기립을 용이하게 하는 동시에, 주연부로부터의 체액의 누설을 방지할 수 있는 일회용 체액 처리 물품을 제공하는 것을 과제로 한다. 
     톱 시트(2)와 백 시트(3) 사이에 코어(4)가 개재하는 적층 패널(1)로 구성되고, 이 패널(1)은 양측 가장자리부(1a)에 위치하여 길이 방향으로 연장되는 한쌍의 측부 시트(5)와, 양단 가장자리부(1b)를 피복하여 폭 방향으로 연장되는 한쌍의 피복 시트(7)를 지니고, 측부 시트(5)의 제2 측부(5b) 각각이, 길이 방향으로 연장되는 절곡부에서 절곡되어 폭 방향 내측으로 연장되는 비고정 측부와 폭 방향 외측으로 연장되는 고정 측부를 형성하여, 고정 측부의 패널(1)에 대향하는 면이, 패널(1)의 양측 가장자리부(1a)의 하면에 고정되고, 피복 시트(7)의 제2 부분(7b) 각각이, 폭 방향으로 연장되는 절곡부에서 절곡되어 길이 방향 내측으로 연장되는 비고정 부분과 길이 방향 외측으로 연장되는 고정 부분을 형성하여, 고정 부분의 패널(1)에 대향하는 면이 패널(1)의 양단 가장자리부(1b)의 하면에 고정되고, 측부 시트(5)의 전후 단부(5c)가 폭 방향 내측으로 쓰러지고 또, 피복 시트(7)의 양측 부분(7c)이 길이 방향 내측으로 쓰러진 상태로, 전후 단부(5c)와 양측 부분(7c)이 서로 고정되어 있다.
Patent KR-20010111978-A (KR)
Inventor: NAM GUNG SIK
Filed: 2000-06-14
Abstract: 본 발명은, 개인용 컴퓨터로 부터 동영상 파일을 수신하여 디스크 기록매체 상에 기록하고, 이를 원거리 매체인 텔레비젼(TV)을 통해 시청가능하도록 하는 디브이디 기록/재생기의 동영상 파일 기록/재생장치 및 기록/재생방법에 관한 것으로서, 본 발명에 따른 디브이디 기록/재생기의 동영상 파일 기록/재생방법은, 라인연결된 개인용 컴퓨터로 부터 전송되는 동영상 파일을 수신하여, 파일에 기록된 데이터의 포맷을 판별하는 제 1단계; 상기 판별결과에 따라, 상기 수신된 동영상 파일의 데이터를 상기 디스크 기록용 데이터 형태로 포맷변환하는 제 2단계; 상기 포맷변환된 동영상 데이터를 상기 디스크 상에 기록저장하는 제 3단계; 및 재생요청시, 상기 기록저장된 동영상 데이터 중 재생요청된 해당 동영상 데이터를 독출하여 외부 출력신호로 신호처리한 다음, 이를 라인연결된 외부 영상기기로 전송하는 제 4단계를 포함하여 이루어져, PC에 저장된 동영상 파일을 수신하여 이를 디스크 기록매체 상에 기록함으로써, 동영상 파일의 휴대 및 보관이 용이하고, 또한 이와 같이 디스크 기록매체 상에 기록된 동영상 데이터를 재생하여 이를 원거리 매체인 텔레비젼을 통해 시청취하게 되는 매우 유용한 발명인 것이다.
Patent KR-20000058726-A (KR)
Inventor: BAK SANG HYOK
IPC: A47J37/10
Filed: 2000-06-26
Abstract: PURPOSE: A frying pan with protective coating over the surface is provided, which is light and easy to handle. CONSTITUTION: The main body(5) is made of a magnesium alloy comprising aluminum 1-12%, copper 0.01-4%, titanium 0.02-2%, silicon 0.1-2%, zinc 0.12%, manganese 0.01-10%, iron 0.01-1%, chromium 0.01-1%, and magnesium for the balance. The magnesium alloy composition is molten to be die casted for the main body, which is heat treated for the removal of remnant gas, sand blasted and acid treated for the removal of oxides on the surface to be spray coated with the molten metal of stainless steel, titanium, copper, aluminum, or manganese and with Teflon for the first coating(1) and the second one(2), the outer surface having a protective coating.
Patent KR-20020005812-A (KR)
Title: Device for mounting in small size transistor
Inventor: NAM CHANG GAP
IPC: H05K13/04
Filed: 2000-07-10
Abstract: PURPOSE: A small transistor mounting device is provided to mount easily and simply small transistors on a substrate without connecting separate leads to the transistor to enhance the mounting workability and productivity of the transistors, as well as of preventing the come-off phenomenon of the transistor by discharging gas generated by soldering through gas discharge holes. CONSTITUTION: Cut coupling recesses(130) are formed in bottom four corners of a transistor(120) mounted on a substrate(110) by soldering so that solder can be collected in the cut coupling recesses(130). A gas discharge hole(140) is formed in the center of a portion(K) of the substrate in which the transistor is mounted so that soldering gas can be discharged.
Patent KR-20020006932-A (KR)
Title: Base station transceiver system using wavelength division multiplexing
Inventor: KIM CHANG WON
IPC: H04B10/29
Filed: 2000-07-14
Abstract: PURPOSE: A BTS(Base station Transceiver System) using a wavelength division multiplexing access is provided to perform a high-speed large capacity and multimedia service by transmitting a digital optical signal applying the CDMA to an optical fiber ring link. CONSTITUTION: A plurality of small BTSs(270) has a switching circuit(304) for grasping whether it is capable of the receipt of input terminals from an optical detector connected to each input terminal and being connected with the input terminal capable of the receipt. A main BTS(220) includes a wavelength division multiplexer(252) for multiplexing optical signals having wavelengths assigned in the small BTSs(270) to an output terminal, a switching circuit(256) for grasping whether it is capable of the receipt of input terminals from an optical detector connected to each input terminal and being connected with the input terminal capable of the receipt, and a wavelength division demultiplexer(254) for demultiplexing the optical signal inputted through the switching circuit(256). A forward optical fiber ring link(262) includes an optical splitter for being connected with the output terminal of the main BTS(220) and bidirectionally splitting an optical signal, an optical isolator for being installed at both sides of the optical splitter, and a pair of unidirectional taps for being connected with the input terminal of the small BTSs(270) and splitting only unidirectional optical signal. A reverse optical fiber ring link(264) has an optical splitter for being connected with the output terminal of the small BTSs(270) and bidirectionally splitting the optical signal and has an open terminal connected with the switching circuit(256) of the main BTS(220).